Frogs reproduce sexually. why do frogs require water to reproduce?

Which of these resources is used worldwide to make construction products, pottery, and porcelain

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt